The properties of ethylamine dehydrogenation and electrolysis using platinum catalyst for efficient, ambient hydrogen production

Recent progress and perspectives of liquid organic hydrogen carrier electrochemistry for energy applications

“…In a follow-up study, Li et al focused on the electrolysis of ethylamine and showcased a remarkable H 2 production rate of 309 μmol h −1 with an impressive 97% FE at room temperature. 9 Moreover, the process yielded acetonitrile with a 100% FE at a cell voltage of 0.6 V. This signifies a notable advancement in ethylamine electrolysis for H 2 release, demonstrating both speed control and excellent selectivity under ambient conditions. The stability of ethylamine electrolysis was evaluated via chronoamperometry, revealing rapid current decay from 81 mA cm −2 to 9 mA cm −2 within 15 minutes, indicating catalyst deactivation.…”

“…Recently, Pt and Pd have been discovered as potential hydrogenation catalysts for nitrile and alcohol-based LOHC − systems. 9,10,28,29,45 Similar to LOHC + electro-oxidation catalysts, the design of LOHC − electro-reduction catalysts prioritizes compatibility with the operational environment and high selectivity towards a single LOHC + product, with activity and stability being a secondary concern. Pt and Pd-based alloys are considered promising candidates for LOHC − reduction catalysts, with their selection guided by the d-band theory and confirmed through experimental screening.…”

“…These alcohols can undergo dehydrogenation to yield carbonyl derivatives as H-lean LOHCs (LOHC − ), which can subsequently be rehydrogenated to H-rich LOHCs (LOHC + ), establishing the basis for an alcohol-based LOHC economy. Besides alcohols, some amines 8–10 and aromatic compounds 11,12 serve as potential LOHC candidates. Noteworthily, ethylamine has been demonstrated as a promising LOHC, boasting an impressive 8.9 wt% hydrogen storage content and exhibiting highly reversible merit.…”

Beyond Traditional Synthesis: Electrochemical Approaches to Amine Oxidation for Nitriles and Imines

“…The membrane-less cell exhibited superior performance, achieving 100% selectivity in producing acetonitrile and 96% Faradaic efficiency (Scheme 5). 50 2.1.2. Application of Alloy and Modified Electrodes in Amine Oxidation.…”